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从经济与碳排放的视角测算2002—2010年京津冀区域间的溢出效应和反馈效应,以考察该地区的市场一体化进程及其碳排放影响。在整个研究期内,就单位最终产出而言,三地区之间的经济溢出—反馈效应始终处于较低水平且总体有所下降。受此影响,相应的区域间碳排放溢出—反馈效应都显著下降。不过,考虑最终产出规模后,北京对天津与河北以及后两地区之间的实际经济和碳排放溢出效应在整个研究期内明显上升。进一步,碳排放溢出效应对三地区碳排放的贡献明显高于经济溢出效应对三地区总产出的贡献。由此可见,京津冀地区的市场一体化在研究期内进展缓慢,仍处于较低水平且不利于整个地区的碳减排。
From the perspective of economy and carbon emissions, we estimate the spillover effect and feedback effect of the Beijing-Tianjin-Hebei region from 2002 to 2010 to examine the process of market integration and the impact of carbon emissions in the region. Over the study period, the economic spillover-feedback effect among the three regions was always at a low level and generally declined in terms of unit final output. Affected by this, the corresponding inter-regional emissions of carbon emissions - the feedback effect has dropped significantly. However, considering the size of the final output, Beijing’s actual economic and carbon emissions spillover effects on Tianjin and Hebei and the latter two regions increased significantly over the study period. Further, the contribution of the carbon emission spill-over effect to the carbon emissions in the three regions is significantly higher than the contribution of the economic spill-out effect to the total output in the three regions. It can be seen from this that the market integration in the Beijing-Tianjin-Hebei region has made slow progress during the study period and is still at a low level and not conducive to carbon reduction in the entire region.